Sir Arthur Conan Doyle was an author most noted for his stories about the detective Sherlock Holmes, which are generally considered a major innovation in the field of crime fiction, and for the adventures of Professor Challenger. He was a prolific writer whose other works include science fiction stories, historical novels, plays and romances, poetry, and non-fiction. In desperation, Holmes is asked to rescue the kidnapped only son of the Duke of Holdernesse. Motivated by greed and jealousy, the criminal in this classic Sherlock Holmes mystery causes a far greater tragedy than mere kidnapping. Crisp, realistic characterizations and a cracklingly suspenseful narrative make this story a must-read for all lovers of mystery and detection as well as Sherlock Holmes fans.